Update blocks and validator set endpoints (#463)

* Update swagger endpoint

* Update api endpoints for blocks and validator sets

content/2.developers/2.developer-tools/5.swagger.md

@@ -24,13 +24,13 @@ Swagger is provided for both <a href="https://api.mainnet.archway.io" target="_b
 
 To use this Swagger API documentation, you must first set up the necessary API calls from a tool or platform that supports RESTful HTTP requests. Here are the general steps you would follow:
 
-1) Identify the API Endpoint: First, select the API endpoint you want to interact with. For instance, if you want to get the latest block's details for Archway mainnet, the endpoint would be **https://api.mainnet.archway.io/blocks/latest**.
+1) Identify the API Endpoint: First, select the API endpoint you want to interact with. For instance, if you want to get the latest block's details for Archway mainnet, the endpoint would be **https://api.mainnet.archway.io/cosmos/base/tendermint/v1beta1/blocks/latest**.
 
 2) Choose the HTTP Method: For all the endpoints in this specification, the HTTP method is GET.
 
 3) Construct the API URL: This involves appending the API endpoint to the base URL of the API.
 
-4) Include Query Parameters (if needed): Some endpoints require additional parameters that should be included in the request. For instance, the **/validatorsets** endpoint accepts a block height as a parameter: **https://api.mainnet.archway.io/validatorsets/18000**.
+4) Include Query Parameters (if needed): Some endpoints require additional parameters that should be included in the request. For instance, the **/validatorsets** endpoint accepts a block height as a parameter: **https://api.mainnet.archway.io//cosmos/base/tendermint/v1beta1/validatorsets/18000**.
 
 5) Send the Request: Use a tool, library, or software that can send HTTP requests. This could be a command-line tool like curl, a programming language with libraries for sending HTTP requests, or a complete API platform like Postman or Insomnia.
 
@@ -45,7 +45,7 @@ An example on how to query the information regarding the latest block, would be
 
 ```bash
 curl -X 'GET' \
-  'https://api.mainnet.archway.io/blocks/latest' \
+  'https://api.mainnet.archway.io/cosmos/base/tendermint/v1beta1/blocks/latest' \
   -H 'accept: application/json'
 ```